The CBR test is primarily use d to determine
Anonymous Quiz
67%
1. Bearing capacity of soil
8%
2. Permeability of soil
18%
3. Suitability of soil for road construction
6%
4. Shear strength of soil
โค5๐3
Which type of elevator is best suited for high-rise buildings?
Anonymous Quiz
48%
Hydraulic elevator
13%
Traction elevator
25%
Pneumatic elevator
14%
Belt elevator
โค8๐2
Considering
(i) Screening (ii) Sedimentation (iii) Disinfection (iv) Filtration. The correct sequence of treatments which are generally given to treat raw water supplies are
(i) Screening (ii) Sedimentation (iii) Disinfection (iv) Filtration. The correct sequence of treatments which are generally given to treat raw water supplies are
Anonymous Quiz
26%
1. (i) (ii) (iii) (iv)
47%
2. (i) (ii) (iv) (iii)
15%
3. (i) (iii) (iv)(ii)
12%
4. (iv) (iii) (ii)(i)
๐4โค2
The first stage of a construction is
Anonymous Quiz
8%
preparation of estimate
39%
survey of the site
42%
initiation of the proposal
12%
preparation of tender
โค8
The strength of concrete in hardened existing structure can be determined by which of the following tests
Anonymous Quiz
27%
1. Cone penetration test
64%
2. Rebound hammer test
7%
3. Bullet test
2%
4. Kelly ball test
โค15
When a shaft is subjected to both bending and torsion, the resultant stress is obtained using the principle of
Anonymous Quiz
17%
1. Plasticity
25%
2. Ductility
32%
3. Elasticity
26%
4. Superposition
1๐ฅ5โค3๐1
๐ Exciting Update for Project Managers! ๐
The PMI has officially released the 8th Edition of the PMBOK Guide. This latest edition brings fresh perspectives, updated best practices, and enhanced tools aligned with todayโs dynamic project environments. Itโs a must-read for all construction engineers, project managers, and professionals aiming to stay ahead in the field.
Key highlights include:
โข Greater focus on value delivery and outcomes
โข Integration of Agile and adaptive approaches
โข Updated frameworks for project performance domains
โข Emphasis on tailoring methods to fit project needs
To support your continuous learning and certification preparation, we have attached the PMI 8th Edition document below for your reference.
Stay updated, stay competitive!
Via Yonatan Tadesse, PMPยฎ
@etconp
The PMI has officially released the 8th Edition of the PMBOK Guide. This latest edition brings fresh perspectives, updated best practices, and enhanced tools aligned with todayโs dynamic project environments. Itโs a must-read for all construction engineers, project managers, and professionals aiming to stay ahead in the field.
Key highlights include:
โข Greater focus on value delivery and outcomes
โข Integration of Agile and adaptive approaches
โข Updated frameworks for project performance domains
โข Emphasis on tailoring methods to fit project needs
To support your continuous learning and certification preparation, we have attached the PMI 8th Edition document below for your reference.
Stay updated, stay competitive!
Via Yonatan Tadesse, PMPยฎ
@etconp
โค7๐5๐ฅ1๐1
Ethio Construction Engineering
๐ Exciting Update for Project Managers! ๐ The PMI has officially released the 8th Edition of the PMBOK Guide. This latest edition brings fresh perspectives, updated best practices, and enhanced tools aligned with todayโs dynamic project environments. Itโsโฆ
PMBOK Guide Eighth Edition_Table of Contents.pdf
2.6 MB
The PMBOK 8th Edition is not yet publicly available as a PDF; its official release date is January 13, 2026. The Project Management Institute (PMI) released a draft for public review in late 2024. While a free PDF is not currently downloadable for the general public, PMI members will receive a free digital copy upon release.
@etconp
@etconp
โค6๐1๐ฅ1
๐แจแขแต แแฃแญ แแแด แแณแจแป แ แตแแแต แฅแจแฐแแแฃ แแ
๐งแจแขแต แแฃแญ แแแด แแณแจแป แจแพแแ แจแฃแแญแณแญ - แขแต แฅแณแต แแแแต แแแฃแณ แ แแปแธแ แแแปแปแ แฅแจแฐแ แซ แแแค แแแแแต แแแฃแณแ 975 แแแฎแ แฅแญ แ แแฐแซแ แแแแตแต แ แแต แฐแญแแแณแแข
๐ซแจแแแแต แแฎแแญแฑ 21.2 แชแแแตแญ แจแแธแแ แฒแพแแฃ แแแญ แ แแ แแแฎแ แฎแแตแตแซแญแฝแ แ แแจแแแ แแญ แญแแแแข
๐งแแแตแแ แขแแ แแชแแ แจแแแจแญ แฅแ แจแแฅแฅแญ แฅแซแแ แซแจแแแแแข
โญ๏ธแจแแแแต แแแฃแณแ แฒแ แแแ แแฐ แขแต แแฃแญ แแแด แแแแก แจแแแญ แแตแฅแ แจแแญ แแแซแต แแฅแแแฝ แแน แแแณแ แญแแฅแซแแข
@etconp
๐งแจแขแต แแฃแญ แแแด แแณแจแป แจแพแแ แจแฃแแญแณแญ - แขแต แฅแณแต แแแแต แแแฃแณ แ แแปแธแ แแแปแปแ แฅแจแฐแ แซ แแแค แแแแแต แแแฃแณแ 975 แแแฎแ แฅแญ แ แแฐแซแ แแแแตแต แ แแต แฐแญแแแณแแข
แจแ แตแแแต แแแแต แแฎแแญแฑ แจแแแฃแณ แแฐแต 48.33 แจแฐแจแฐ แฒแแแฃ แ แตแแแต แแแแ แ แจแแซแตแฝแ แจแคแแฎแญแต แ แ แญ แแแจแต แฅแแฒแแ แจแแ แแแฐแป แแแฃแณ แฅแซแแฝ แ แแจแแแ แแญ แแธแแข
๐ซแจแแแแต แแฎแแญแฑ 21.2 แชแแแตแญ แจแแธแแ แฒแพแแฃ แแแญ แ แแ แแแฎแ แฎแแตแตแซแญแฝแ แ แแจแแแ แแญ แญแแแแข
๐งแแแตแแ แขแแ แแชแแ แจแแแจแญ แฅแ แจแแฅแฅแญ แฅแซแแ แซแจแแแแแข
โญ๏ธแจแแแแต แแแฃแณแ แฒแ แแแ แแฐ แขแต แแฃแญ แแแด แแแแก แจแแแญ แแตแฅแ แจแแญ แแแซแต แแฅแแแฝ แแน แแแณแ แญแแฅแซแแข
แ แ แซแฃแขแ แจแแแจแฑ แจแฐแแซแฉ แจแแฅแญแ แแญแถแฝ แ แแแ แแฐ แแแจแแ แแ แซ แแแตแจแต แซแตแฝแแแข
แแฐ แฃแแญแณแญ แจแฐแ แจแแฐแจแแแ แจแตแซแแตแแญแต แฅแแ แตแแด แซแณแแฃแแข
แ แ แ แแแญ แ แแ แแแต แจแฃแแญแณแญ - แขแต แฅแณแต แ แตแแแต แแแแต แแฎแแญแต แ แแปแธแ แฅแตแจ 80 แ แแถ แแแตแจแต แแ แต แฐแญแ แฅแจแฐแฐแซ แแแข
@etconp
โค4๐1
๐ INTERCON Construction Chemicals
โ Concrete Admixtures
โ Bonding Agents
โ Waterproofings
โ Wall Putty, Prime Coat
โ Concrete Repair Mortar
โ Floor hardener, Epoxy
โ Grout, Self-level mortar
โ Quartz paint, Contextra
โ Tile Adhesive & Tile Joint Fillers
โ Geotextiles and other construction chemicals and materials
โ๏ธ Tel: 0961955555
๐น Address 1: Signal road, around
Dinberwa Hospital
๐น Addres 2: Wellosefer, Infront of
Dani Plaza
โ Concrete Admixtures
โ Bonding Agents
โ Waterproofings
โ Wall Putty, Prime Coat
โ Concrete Repair Mortar
โ Floor hardener, Epoxy
โ Grout, Self-level mortar
โ Quartz paint, Contextra
โ Tile Adhesive & Tile Joint Fillers
โ Geotextiles and other construction chemicals and materials
โ๏ธ Tel: 0961955555
๐น Address 1: Signal road, around
Dinberwa Hospital
๐น Addres 2: Wellosefer, Infront of
Dani Plaza
โค11
๐แ แฑแฃแญ แจแแแแฃแ แ แฒแต แแแจแ แ แแ แแญ แญแแณแแแ แฐแฃแ
โ๏ธแจแฑแฃแญ แแฅ แจแแแต แญแกแญ แผแฝ แแแแต แขแ แซแบแต แ แ แแญแฑแ แ แ แ แแฐแญแ แแฉแ แจแแแซแแ แฅแ แแฑแฃแญ แ แฒแต แจแตแ-แ แแ แฅแ แจแฃแ แ แแแญแต แจแแแแแ แจแฑแฃแญ แจแตแ แฅแ แฅ แแแจแ แแตแ แญแ แ แตแญแแแแข
๐ซแจแฑแฃแญ แจแตแ แฅแ แฅ แแแจแ แจแแแแฃแ แ แฑแฃแญ แญแชแญ แแ แแญ แญแแแแข
๐ซแญแ แ แฑแฃแญ แจแแ แซ แขแฎแแ แแแ แ แแ แแ แจแฐแ แจแแแ แซแแญแ แฅแ แจแจแฐแแแ แแฃแญแแต แซแแ แจแฃแ แแ แจแชแแฅแ แฅ แแแต แจแแซแแธแฃแญแ แญแแแแข
โบแ แ แแแญ แจแตแ แแแแ แ แ แซแญ แแแฅแแแฝ แแฉ แแแต แ แแฐแฅ แแแฉ แฐแแญแพแแข
๐งแ แแตแต แแ แซแแ แญแ แจแแแณแแ แแแจแ แ แแแแชแซแ แฅแ แ แแแฐแแ แแแฝ แแญ แจแคแแแขแฝแ แแแชแแฝแฃ แ แฆแตแฐแแ แแ แแญ แฐแแ แแแฅ แคแต แฅแ แแจแแฐแ แฅแแแถแฝ แจแแแ แแแแ แญแแจแแแข
โบแแแจแ แจแแฌแต แฅแ แจแแฌแต แแตแฅ (แคแแแแต) แแแฝแ แญแแฉแณแแข
๐ซแจแชแ แฅแ แฅ แฅแซแแฝ แคแแแขแฝแ แ แฐแจแแชแ แแแจแ แจแชแ แฅแ แฅ แฃแแแซแแฝ แแญแญแถแฝแแฃ แจแแแ แแญแญแถแฝแแฃ แจแตแแ แญแต แแฎแแซแแฝแ แฅแ แจแตแ แฅแ แฅ แตแญแขแถแฝแ แซแแแแ แฐแฅแแแข
@etconp
โ๏ธแจแฑแฃแญ แแฅ แจแแแต แญแกแญ แผแฝ แแแแต แขแ แซแบแต แ แ แแญแฑแ แ แ แ แแฐแญแ แแฉแ แจแแแซแแ แฅแ แแฑแฃแญ แ แฒแต แจแตแ-แ แแ แฅแ แจแฃแ แ แแแญแต แจแแแแแ แจแฑแฃแญ แจแตแ แฅแ แฅ แแแจแ แแตแ แญแ แ แตแญแแแแข
๐ซแจแฑแฃแญ แจแตแ แฅแ แฅ แแแจแ แจแแแแฃแ แ แฑแฃแญ แญแชแญ แแ แแญ แญแแแแข
๐ซแญแ แ แฑแฃแญ แจแแ แซ แขแฎแแ แแแ แ แแ แแ แจแฐแ แจแแแ แซแแญแ แฅแ แจแจแฐแแแ แแฃแญแแต แซแแ แจแฃแ แแ แจแชแแฅแ แฅ แแแต แจแแซแแธแฃแญแ แญแแแแข
โบแ แ แแแญ แจแตแ แแแแ แ แ แซแญ แแแฅแแแฝ แแฉ แแแต แ แแฐแฅ แแแฉ แฐแแญแพแแข
๐งแ แแตแต แแ แซแแ แญแ แจแแแณแแ แแแจแ แ แแแแชแซแ แฅแ แ แแแฐแแ แแแฝ แแญ แจแคแแแขแฝแ แแแชแแฝแฃ แ แฆแตแฐแแ แแ แแญ แฐแแ แแแฅ แคแต แฅแ แแจแแฐแ แฅแแแถแฝ แจแแแ แแแแ แญแแจแแแข
โบแแแจแ แจแแฌแต แฅแ แจแแฌแต แแตแฅ (แคแแแแต) แแแฝแ แญแแฉแณแแข
๐ซแจแชแ แฅแ แฅ แฅแซแแฝ แคแแแขแฝแ แ แฐแจแแชแ แแแจแ แจแชแ แฅแ แฅ แฃแแแซแแฝ แแญแญแถแฝแแฃ แจแแแ แแญแญแถแฝแแฃ แจแตแแ แญแต แแฎแแซแแฝแ แฅแ แจแตแ แฅแ แฅ แตแญแขแถแฝแ แซแแแแ แฐแฅแแแข
@etconp
โค13
๐Soil Stabilization Techniques
๐ซWhat is Soil Stabilization?
โบSoil stabilization is the process of improving soil properties to increase its strength, durability, and load-bearing capacity.
โบIt is essential for constructing roads, pavements, embankments, and foundations.
๐Types of Soil Stabilization Techniques
๐1. Mechanical Stabilization
โบInvolves physically altering the soil structure.
๐ฒTechniques include:
โบCompaction: Increasing soil density using rollers or tampers.
โบBlending: Mixing soils of different types to achieve better properties.
โบGeosynthetics: Adding geotextiles, geogrids, or geomembranes to improve stability.
โ๏ธPurpose: Reduces settlement and increases bearing capacity.
๐2. Chemical Stabilization
โบImproves soil properties by adding chemicals.
๐ฒCommon agents:
โบLime: Used for clayey soils; reduces plasticity and increases strength.
โบCement: Improves bearing capacity and decreases permeability.
โบFly ash: Enhances soil strength and durability.
โบBitumen: Used in road construction for water resistance.
๐Purpose: Increases strength, reduces shrink-swell behavior, and improves durability.
๐3. Physical Stabilization
โบAlters soil by changing its physical structure without chemical reactions.
๐ฒMethods include:
โบElectro-osmosis: Using electrical currents to remove from clay soils.
โบFreezing: Temporarily stabilizes water-saturated soils.
๐ฐPurpose: Suitable for soft, wet, or weak soils in specialized projects.
๐4. Biological Stabilization
โ๏ธUses vegetation or microorganisms to stabilize soil.
๐ฒExamples:
โบGrass planting: Prevents erosion on slopes.
โบBioenzymes: Treat soil for compaction and strength.
โบPurpose: Environmentally friendly and prevents surface erosion.
๐5. Reinforcement Techniques
โบUses reinforcements to improve soil stability.
๐ทExamples:
โบSoil nailing: Steel rods inserted into slopes.
โบGeogrids and geotextiles: Provide tensile strength to soil.
โบRetaining structures: Gabions, crib walls, and sheet piles.
๐งPurpose: Reduces risk of landslides and improves slope stability.
๐ซApplications:
โบRoad construction and pavements
โบEmbankments and dams
โบFoundation improvement
โบSlope stabilization
๐ซAdvantages:
โบIncreases soil strength and durability.
โบReduces erosion and settlement.
โบEnables construction on weak soils.
โบEconomical compared to replacing soil.
@etconp
๐ซWhat is Soil Stabilization?
โบSoil stabilization is the process of improving soil properties to increase its strength, durability, and load-bearing capacity.
โบIt is essential for constructing roads, pavements, embankments, and foundations.
๐Types of Soil Stabilization Techniques
๐1. Mechanical Stabilization
โบInvolves physically altering the soil structure.
๐ฒTechniques include:
โบCompaction: Increasing soil density using rollers or tampers.
โบBlending: Mixing soils of different types to achieve better properties.
โบGeosynthetics: Adding geotextiles, geogrids, or geomembranes to improve stability.
โ๏ธPurpose: Reduces settlement and increases bearing capacity.
๐2. Chemical Stabilization
โบImproves soil properties by adding chemicals.
๐ฒCommon agents:
โบLime: Used for clayey soils; reduces plasticity and increases strength.
โบCement: Improves bearing capacity and decreases permeability.
โบFly ash: Enhances soil strength and durability.
โบBitumen: Used in road construction for water resistance.
๐Purpose: Increases strength, reduces shrink-swell behavior, and improves durability.
๐3. Physical Stabilization
โบAlters soil by changing its physical structure without chemical reactions.
๐ฒMethods include:
โบElectro-osmosis: Using electrical currents to remove from clay soils.
โบFreezing: Temporarily stabilizes water-saturated soils.
๐ฐPurpose: Suitable for soft, wet, or weak soils in specialized projects.
๐4. Biological Stabilization
โ๏ธUses vegetation or microorganisms to stabilize soil.
๐ฒExamples:
โบGrass planting: Prevents erosion on slopes.
โบBioenzymes: Treat soil for compaction and strength.
โบPurpose: Environmentally friendly and prevents surface erosion.
๐5. Reinforcement Techniques
โบUses reinforcements to improve soil stability.
๐ทExamples:
โบSoil nailing: Steel rods inserted into slopes.
โบGeogrids and geotextiles: Provide tensile strength to soil.
โบRetaining structures: Gabions, crib walls, and sheet piles.
๐งPurpose: Reduces risk of landslides and improves slope stability.
๐ซApplications:
โบRoad construction and pavements
โบEmbankments and dams
โบFoundation improvement
โบSlope stabilization
๐ซAdvantages:
โบIncreases soil strength and durability.
โบReduces erosion and settlement.
โบEnables construction on weak soils.
โบEconomical compared to replacing soil.
@etconp
โค13๐5
ADVERTISMENT
แณแแซแต แแแต แฅแ แ แฆแแต แ แ แซแข
โ แจแแแฐแฃแธแ แ แแแแแถแฝ
๐ แแแต any Size & thickness
๐ แ แฆแแต (แฅแญแต แแแฃแตแ แแ แ)
๐ แจแฐแแซแฉ [modefic] แตแซแแฝแ แฅแแฐแซแแแข
โฆ๏ธ แแแแแแ แฅแจแณ แฅแจแต แฅแแแแแแข
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แ.2 แ แจแญ แคแ แชแณแ แแ แจแต
แฅแซแตแ แณแแแแต แแแซแฝแ แแแข
แณแแซแต แแแต แฅแ แ แฆแแต แ แ แซแข
แณแแซแต แแแต แฅแ แ แฆแแต แ แ แซแข
โ แจแแแฐแฃแธแ แ แแแแแถแฝ
๐ แแแต any Size & thickness
๐ แ แฆแแต (แฅแญแต แแแฃแตแ แแ แ)
๐ แจแฐแแซแฉ [modefic] แตแซแแฝแ แฅแแฐแซแแแข
โฆ๏ธ แแแแแแ แฅแจแณ แฅแจแต แฅแแแแแแข
โ๏ธแตแแญ 0904040477 แแญแ 0911016833 แฐแแแ แซแแแ
๐ฑแดแแแซแ แแญ แฆhttps://t.me/heavenic1
แ แตแซแปแฆ แ 1.แแญแซแถ
แ.2 แ แจแญ แคแ แชแณแ แแ แจแต
แฅแซแตแ แณแแแแต แแแซแฝแ แแแข
แณแแซแต แแแต แฅแ แ แฆแแต แ แ แซแข
โค3
๐TYPES OF PIPES COMMONLY USED IN WATER SUPPLY SYSTEM
๐ซThe types of pipes commonly used in water distribution systems are described below.
โญ1. CAST IRON PIPES:
Cast iron pipes or CI pipes are broadly utilized for distribution of water because they are less
expensive, corrosion resistant, and long lasting.
CI pipes are mainly produced by following four techniques.
.
1. Horizontally cast ( MC ware pipes)
2. Vertically cast ( Pit cast in sand molds)
3. Centrifugally cast in sand lines molds spun
type.
4. Centrifugally cast in water cooled molds.
Uses of horizontally cast CI pipes are presently pretty much outdated, thatโs why they are infrequently produced these days. Centrifugally cast pipes are most widely used because they have more grained dense structure and uniform thickness. Generally, CI pipes are 3-6 m long, so much heavy, and require extra care to avoid from damaging while transporting and creating connections.
โญ2. STEEL PIPES:
Steel pipes are utilized in water mains circumstances where the pipes are going through very high pressure ( More than 7 kg/cm2) and required large diameter pipes. These pipes have greater strength and less weight than CI pipes. Satisfactory treatments should be given to maintain antagonistic climatic conditions.
โญ3. GALVANIZED IRON PIPES:
Galvanized pipes are also known as GI pipes are fashioned steel pipes with zinc coating. GI pipes are mostly utilized for water supply and service connections.
โญ4. COPPER PIPES:
Copper pipes are most commonly utilized in hot water supply establishment. Some features of
this pipes are as following:
1. They possess high tensile strength.
2. They can be bent easily.
3. Copper pipes can be used in thin wall. Copper pipes are sometimes chromium plated to enhance their appearance and to match with the chromium plated water supply fittings.
โญ5. POLYTHENE PIPES:
Polythene and PVC pipes are being utilized progressively nowadays for cold water supply inside and outside works. These pipes are lightweight, cheaper, corrosion resistant, and require no threading for making any connections.
๐Besides these, there are other pipes commonly used for water distribution such as :
asbestos cement (AC) pipes,
reinforced concrete (RCC) pipes, prestressed reinforced concrete (PSC) pipes etc.
๐The selection of the types of pipe for utilizing any purposes is adopted according to the design criteria, material availability, cost, and other comparative variables.
@etconp
๐ซThe types of pipes commonly used in water distribution systems are described below.
โญ1. CAST IRON PIPES:
Cast iron pipes or CI pipes are broadly utilized for distribution of water because they are less
expensive, corrosion resistant, and long lasting.
CI pipes are mainly produced by following four techniques.
.
1. Horizontally cast ( MC ware pipes)
2. Vertically cast ( Pit cast in sand molds)
3. Centrifugally cast in sand lines molds spun
type.
4. Centrifugally cast in water cooled molds.
Uses of horizontally cast CI pipes are presently pretty much outdated, thatโs why they are infrequently produced these days. Centrifugally cast pipes are most widely used because they have more grained dense structure and uniform thickness. Generally, CI pipes are 3-6 m long, so much heavy, and require extra care to avoid from damaging while transporting and creating connections.
โญ2. STEEL PIPES:
Steel pipes are utilized in water mains circumstances where the pipes are going through very high pressure ( More than 7 kg/cm2) and required large diameter pipes. These pipes have greater strength and less weight than CI pipes. Satisfactory treatments should be given to maintain antagonistic climatic conditions.
โญ3. GALVANIZED IRON PIPES:
Galvanized pipes are also known as GI pipes are fashioned steel pipes with zinc coating. GI pipes are mostly utilized for water supply and service connections.
โญ4. COPPER PIPES:
Copper pipes are most commonly utilized in hot water supply establishment. Some features of
this pipes are as following:
1. They possess high tensile strength.
2. They can be bent easily.
3. Copper pipes can be used in thin wall. Copper pipes are sometimes chromium plated to enhance their appearance and to match with the chromium plated water supply fittings.
โญ5. POLYTHENE PIPES:
Polythene and PVC pipes are being utilized progressively nowadays for cold water supply inside and outside works. These pipes are lightweight, cheaper, corrosion resistant, and require no threading for making any connections.
๐Besides these, there are other pipes commonly used for water distribution such as :
asbestos cement (AC) pipes,
reinforced concrete (RCC) pipes, prestressed reinforced concrete (PSC) pipes etc.
๐The selection of the types of pipe for utilizing any purposes is adopted according to the design criteria, material availability, cost, and other comparative variables.
@etconp
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